We cannot even compile a program that might involve a loss of precision. Attempting to (implicitly) convert a double to a float will cause a compile error such as:

Demo.java:4: possible loss of precision
found   : double
required: float

We should do one of the following:

• Explicitly cast from double to float:

  float d = (float)3.8;

• Use f to indicate that the literal is a float not a double

test text

We cannot even compile a program that might involve a loss of precision. Attempting to (implicitly) convert a double to a float will cause a compile error such as:

Demo.java:4: possible loss of precision
found   : double
required: float

We should do one of the following:

• Explicitly cast from double to float:

  float d = (float)3.8;

• Use f to indicate that the literal is a float not a double

test text

This is an issue with Java

We can use Math.round to convert:

• A double to a long
• A float to an int

In this example we try to convert a double to an int. The solution is to either:

• Change the double to a float first:

  int i=Math.round(3.1f);

• Change the long to an int:

  int i=(int)Math.round(3.1);

test text

This is an issue with Java

test text